HY939 Neural RTV Gasket Maker
HY939 Neutral RTV Gasket Maker is a single-component, neutral-cure RTV silicone gasket sealant designed for high-performance automotive and industrial sealing applications. It cures by reacting with atmospheric moisture to form a highly flexible, durable elastomer. The product is sensor-safe, non-corrosive, and low-odor, making it suitable for use on a wide range of metal and engineering plastic substrates.
HY939 provides excellent resistance to high and low temperatures, oils, antifreeze, sewage, and automatic transmission fluids. After curing, it exhibits no shrinkage, maintains long-term elasticity, and allows for easy disassembly during maintenance, ensuring reliable sealing performance under demanding operating conditions.
Color Options
Black / Grey / White
Packaging
30–100 ml aluminum tube
280 ml / 300 ml cartridge
Shelf Life
Aluminum tube: 18 months
Cartridge: 12 months
|
Color |
grey |
Application Temperature |
Apply between -60℃ and 315℃ |
|
Appearance |
Lump-free paste |
Maximum length of the joint |
6mm |
|
Shore A-hardness |
25 |
Seal up time |
immediate |
|
Maximum seal oil pressure, Mpa |
8 |
Tack free time, minutes |
5-8 |
|
Extrudability (ml/min) |
150 |
Shelf Life |
12 months from date of manufacture (unopened) |
Product Functions
Application scenarios
Advantages and Competitiveness
Your Needs, Our Formulation
Customization Options
KINGDELI offers flexible customization services to meet your branding and packaging needs. Customers can choose custom cartridge designs, box packaging, and colors to align with their specific requirements. Our team ensures high-quality, professional packaging solutions that enhance brand recognition and market appeal.
End-to-End Custom Options
◤ Custom cartridge printing and branding
◤ Personalized box design and printing
◤ Customized sealant color
Enhance your product identity with Kingdeli customizable packaging solutions. Contact us to discuss your requirements and request a sample.
Frequently Asked Questions
Find quick answers to the most common questions about our sealant products — from application tips to storage and performance details.
HY-939
What colors and packaging options are available?
HY939 is available in grey, red, black, clear, and customized colors. Packaging options include aluminum tubes (30–100 ml) and cartridges (280 ml / 300 ml).
Is the product sensor-safe?
Yes. HY939 is sensor-safe, low-odor, and does not release corrosive by-products during curing.
Does the sealant shrink after curing?
No. HY939 does not shrink after curing and maintains long-term elasticity.
Can parts sealed with HY939 be disassembled later?
Yes. The cured sealant allows for relatively easy disassembly during maintenance without damaging mating surfaces.
Is HY939 safe for use on metal and plastic parts?
Yes. It is non-corrosive and provides excellent adhesion to metals such as aluminum, copper, and stainless steel, as well as engineering plastics including PC and ABS.
Get Tailored Solutions for Your Adhesives and Sealants Needs
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Innovating with Integrity, Bonding the World
Since 1998, KINGDELI has delivered trusted, sustainable sealant solutions that connect industries and inspire progress worldwide.
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